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x/vulndb: potential Go vuln in github.com/mattermost/mattermost/server/v8: GHSA-mx8m-v8qm-xwr8 #4326

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x/vulndb: potential Go vuln in github.com/mattermost/mattermost/server/v8: GHSA-mx8m-v8qm-xwr8#4326
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@GoVulnBot
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opened on Jan 16, 2026

Advisory GHSA-mx8m-v8qm-xwr8 references a vulnerability in the following Go modules:

Module
github.com/mattermost/mattermost-server
github.com/mattermost/mattermost-server/v5
github.com/mattermost/mattermost-server/v6
github.com/mattermost/mattermost/server/v8

Description:
Mattermost versions 10.11.x <= 10.11.8, 11.1.x <= 11.1.1, 11.0.x <= 11.0.6 fail to prevent infinite re-renders on API errors which allows authenticated users to cause application-level DoS via triggering unbounded component re-render loops.

References:

Cross references:

See doc/quickstart.md for instructions on how to triage this report.

id: GO-ID-PENDING
modules:
    - module: github.com/mattermost/mattermost-server
      non_go_versions:
        - introduced: TODO (earliest fixed "11.0.7", vuln range ">= 11.0.0, <= 11.0.6")
        - introduced: TODO (earliest fixed "11.1.2", vuln range ">= 11.1.0, <= 11.1.1")
        - introduced: TODO (earliest fixed "10.11.9", vuln range ">= 10.11.0, <= 10.11.8")
      vulnerable_at: 11.3.0+incompatible
    - module: github.com/mattermost/mattermost-server/v5
      vulnerable_at: 5.39.3
    - module: github.com/mattermost/mattermost-server/v6
      vulnerable_at: 6.7.2
    - module: github.com/mattermost/mattermost/server/v8
      versions:
        - fixed: 8.0.0-20251210072417-cc6b77b27132
summary: Mattermost is vulnerable to DoS due to infinite re-renders on API errors in github.com/mattermost/mattermost-server
cves:
    - CVE-2025-14435
ghsas:
    - GHSA-mx8m-v8qm-xwr8
references:
    - advisory: https://github.com/advisories/GHSA-mx8m-v8qm-xwr8
    - advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-14435
    - fix: https://github.com/mattermost/mattermost/commit/613bb616cd62c584a606919e6978688e7b87d81e
    - fix: https://github.com/mattermost/mattermost/commit/9f7629504bc93f79af8d606329c025a687e143cd
    - fix: https://github.com/mattermost/mattermost/commit/cc6b77b271324796b72f1e6b82dba85a86462f9f
    - web: https://mattermost.com/security-updates
notes:
    - fix: 'module merge error: could not merge versions of module github.com/mattermost/mattermost-server: invalid or non-canonical semver version (found TODO (earliest fixed "11.0.7", vuln range ">= 11.0.0, <= 11.0.6"))'
    - fix: 'github.com/mattermost/mattermost/server/v8: could not add vulnerable_at: could not find tagged version between introduced and fixed'
source:
    id: GHSA-mx8m-v8qm-xwr8
    created: 2026-01-16T21:03:28.90459359Z
review_status: UNREVIEWED

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